Sektor (or other RS...
 

[Closed] Sektor (or other RS forks), clunk at start of travel?

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I've got a 6 ride old set of sektors which have an annoying clunk at the start of the travel. Google searching throws up lots of results relating to something similar on uturn forks, but these are fixed travel. So does anyone know what causes this clunk and how to fix it? Forks are the 150mm Sektor R, which I've shortened to 110mm using RS spacers.


 
Posted : 12/08/2012 9:37 pm
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Have they got Motion Control? The floodgate may be set incorrectly if so. It affects more than the lockout, there's a great explanation of it [url= http://forums.mtbr.com/shocks-suspension/floodgate-please-explain-157503.html#post1498056 ]HERE.[/url]


 
Posted : 12/08/2012 11:01 pm
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Check for bushing wear/play.

Check if it does it with no air in the fork.


 
Posted : 13/08/2012 12:29 am
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No, not Motion control. They are the rebound only version. Greta explanation on MC though.

Will check later with no air. Would be annoyed if they had bushing wear or play after only 6 rides from brand new!


 
Posted : 13/08/2012 9:58 am
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bump for any other suggestions


 
Posted : 13/08/2012 12:02 pm
 LoCo
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Possibly, main spring knock on inside of leg, or on spring plunger it may also be the negative spring being slightly misaligned, if it's a real pain get them back for a warranty inspection via the dealer you bought them from.


 
Posted : 13/08/2012 12:04 pm
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Thanks,

Solo air fork (missing important info for my first post) so not the main spring. Do the solo airs have a negative spring? Can't remember if there was one when I shortened them.

Is there anything in the air leg that I could have put in incorrectly that might cause this. I presuming shortening by 40mm is fine despite the manual only showing 10mm reduction.


 
Posted : 13/08/2012 12:44 pm
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My solo air sektors do the same thing, sort of 1-2 mm vertical play when they're at full height. Stripped them down and seems to be slight movement with the solo air shaft, think it's something to do with air passing to the negative side. There's no play in the bushings and they work fine when compressed a bit, but it's annoying on steep climbs when the forks unweighted and you feel the knocking. No idea how to sort it though


 
Posted : 13/08/2012 2:54 pm
 LoCo
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Ah ok, solo air, yes it's the main piston lift on initail travel, to allow flow to neg chamber, small wavy washer/spring held in place by a circlip, bit of grease on this may help a little.


 
Posted : 13/08/2012 2:59 pm
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Cool, ta, remember seeing that bit. I was a bit lazy when reassembling them and didn't add any extra grease around there. Will give the extra grease a go.

I did wonder what the point in that wavy washer was!


 
Posted : 13/08/2012 3:24 pm
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Hello mate had same problem with some solo air recons i found the wavey washer had split managed to buy a few new ones off ebay think they were m10 if t helps .


 
Posted : 13/08/2012 7:41 pm
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Cool, thanks for the tip.


 
Posted : 14/08/2012 10:40 am